441164476043821 has 4 divisors (see below), whose sum is σ = 441164692040512. Its totient is φ = 441164260047132.

The previous prime is 441164476043693. The next prime is 441164476043867. The reversal of 441164476043821 is 128340674461144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 441164476043821 - 2⁷ = 441164476043693 is a prime.

It is a super-2 number, since 2×441164476043821² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441164476043891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104905125 + ... + 109029418.

It is an arithmetic number, because the mean of its divisors is an integer number (110291173010128).

Almost surely, 2^{441164476043821} is an apocalyptic number.

It is an amenable number.

441164476043821 is a deficient number, since it is larger than the sum of its proper divisors (215996691).

441164476043821 is a wasteful number, since it uses less digits than its factorization.

441164476043821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215996690.

The product of its (nonzero) digits is 12386304, while the sum is 55.

The spelling of 441164476043821 in words is "four hundred forty-one trillion, one hundred sixty-four billion, four hundred seventy-six million, forty-three thousand, eight hundred twenty-one".